In-situ negative pressure leaching system for ionic rare earth ore

Abstract

The utility model relates to the technical field of leaching mining, in particular to an ion type rare earth ore in-situ negative pressure leaching system which comprises a negative pressure capillary pipeline, a negative pressure branch pipeline, a negative pressure main pipeline and a negative pressure generating device. The negative pressure capillary pipeline is arranged in the liquid collecting roadway, the negative pressure branch pipeline is arranged in the liquid collecting roadway, the negative pressure capillary pipeline is connected with the negative pressure branch pipeline, the negative pressure branch pipeline is connected with the negative pressure main pipeline, and the negative pressure main pipeline is connected with the negative pressure generating device; a plurality of negative-pressure surfaces perpendicular to the negative-pressure branch pipelines are arranged in the ion type rare earth ore body, each negative-pressure surface comprises a plurality of negative-pressure capillary channels, the negative-pressure capillary channels in each negative-pressure surface are connected to the same position of the negative-pressure branch pipelines, and the negative-pressure capillary channels in each negative-pressure surface are distributed in a fan shape. According to the utility model, the negative pressure capillary channels are arranged in the ore body, so that the permeation and diffusion effects of the ore leaching liquid in the ore body are improved, and the concentration of rare earth ions in the leaching liquid is improved.

Description

Technical Field

[0001] This utility model relates to the field of leaching mining technology, specifically to an in-situ negative pressure leaching system for ion-type rare earth minerals. Background Technology

[0002] In the mining of ion-adsorption rare earth minerals, in-situ leaching technology is widely used due to its high efficiency and environmental friendliness. Traditional leaching methods for ion-adsorption rare earth minerals often suffer from low leaching efficiency, significant resource waste, and severe environmental pollution. To overcome these shortcomings, in-situ leaching technology has emerged. In-situ leaching involves injecting a leaching agent solution into the ore layer through drilling without damaging the original structure and environment of the ore body. This allows rare earth ions to desorb into the solution in situ. The leachate is then recovered through a collection system for subsequent extraction processes. In in-situ negative pressure leaching systems, the injection and recovery of the leaching solution are crucial. Traditional leaching systems typically employ simple injection and collection methods, lacking precise control and monitoring methods. This makes it difficult to stably control parameters such as the flow rate and pressure of the leaching solution during the leaching process, affecting leaching efficiency. Furthermore, traditional leaching systems often neglect the creation and maintenance of a negative pressure environment within the ore body, which plays a vital role in improving leaching efficiency and promoting sufficient contact between the leaching solution and the ore body. Furthermore, traditional leaching systems suffer from low levels of automation. The leaching process requires significant manual intervention and monitoring, which not only increases labor intensity but also makes real-time control and optimization of the leaching process difficult. Utility Model Content

[0003] To address the problems of low leaching efficiency and lack of precise control and monitoring in the existing technology, this invention provides an in-situ negative pressure leaching system for ion-type rare earth minerals.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] An in-situ negative pressure leaching system for ion-adsorption rare earth minerals includes an ion-adsorption rare earth mineral body, a leaching solution injection system, a negative pressure system, and an intelligent control system.

[0006] The leaching solution injection system includes a storage device, an injection pump, a main leaching solution pipeline, branch leaching solution pipelines, and injection pipelines. The main leaching solution pipeline and the branch leaching solution pipelines are located above and outside the ion-adsorption rare earth ore body. The input end of the injection pump is connected to the storage device, and the output end is connected to the main leaching solution pipeline. The main leaching solution pipeline is equipped with an injection valve and multiple branch leaching solution pipelines. Multiple injection pipelines are provided on the branch leaching solution pipelines, and the ends of the injection pipelines extend into the ore body.

[0007] The leaching solution recovery system includes a collection tunnel, a collection ditch, and a mother liquor tank; the collection tunnel is located below the ion-adsorption rare earth ore body, with one end open and the other end extending into the ore body; the collection ditch is provided at the open end of the collection tunnel and is connected to the mother liquor tank.

[0008] The negative pressure system includes negative pressure capillary pipes, negative pressure branch pipes, a negative pressure main pipe, and a negative pressure generating device. The negative pressure branch pipes are located within the liquid collection tunnel. The negative pressure capillary pipes are connected to the negative pressure branch pipes, which are connected to the negative pressure main pipe. The negative pressure main pipe is connected to the negative pressure generating device, and a negative pressure valve is installed on the negative pressure main pipe. The ion-adsorption rare earth ore body contains multiple negative pressure surfaces perpendicular to the negative pressure branch pipes. Each negative pressure surface includes multiple negative pressure capillary pipes. The negative pressure capillary pipes in each negative pressure surface are connected to the same position of the negative pressure branch pipe, and the negative pressure capillary pipes in each negative pressure surface are distributed in a fan shape.

[0009] The intelligent control system includes a data acquisition module and an automatic control module; the automatic control module is connected to the injection pump, the injection valve, the negative pressure generating device, and the negative pressure valve.

[0010] Furthermore, the ion-adsorption rare earth ore body is equipped with a pressure sensor, a liquid level sensor, and a permeability sensor; the liquid storage device is equipped with a liquid level sensor and a pH sensor; and the injection pipeline is equipped with a flow sensor.

[0011] Furthermore, the data acquisition module is connected to the liquid level sensor, the permeability sensor, the flow sensor, the pH sensor, and the pressure sensor.

[0012] Furthermore, the intelligent control system also includes a data processing and analysis module, a security module, and a system optimization module.

[0013] Furthermore, the liquid storage device is equipped with a stirring device and a temperature control device.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention provides an in-situ negative pressure leaching system for ion-adsorption rare earth minerals. By setting multiple negative pressure surfaces perpendicular to the negative pressure branch pipes within the ore body, with negative pressure capillary channels in each negative pressure surface distributed in a fan shape, a negative pressure environment is generated within the ion-adsorption rare earth mineral body. This enhances the penetration and diffusion of the leaching solution within the ore body, resulting in a more uniform distribution of the leaching solution and fully leaching out rare earth ions, thus increasing the concentration of rare earth ions in the leaching solution. Simultaneously, the negative pressure environment accelerates the flow rate of the leaching solution, reducing its residence time within the ore body and improving leaching efficiency. The application of an intelligent control system enables automated monitoring and regulation of the entire leaching process. The data acquisition module collects key parameters during the leaching process in real time, and the automatic control module automatically adjusts the working status of the injection pump, injection valve, negative pressure generator, and negative pressure valve according to preset conditions and algorithms, ensuring the stability and efficiency of the leaching process. This not only improves work efficiency but also reduces the complexity and error rate of manual operation. Attached Figure Description

[0016] The embodiments of this utility model will be further described below with reference to the accompanying drawings, wherein:

[0017] Figure 1 A schematic diagram of an embodiment of an ion-type rare earth ore in-situ negative pressure leaching system is shown.

[0018] Figure 2 A schematic diagram of an embodiment of the negative pressure system is shown;

[0019] Figure 3 This illustrates the negative pressure capillary channel in... Figure 2 A schematic diagram of the distribution of surface A shown;

[0020] Attached diagram labels: 1-Storage device, 2-Injection pump, 3-Main leaching solution pipeline, 4-Branch leaching solution pipeline, 5-Injection pipeline, 6-Collection tunnel, 7-Negative pressure capillary pipeline, 8-Negative pressure branch pipeline, 9-Main negative pressure pipeline, 10-Negative pressure generating device, 11-Intelligent control system. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0022] Reference Appendix Figure 1 An in-situ negative pressure leaching system for ion-type rare earth minerals includes an ion-type rare earth mineral body, a leaching solution injection system, a negative pressure system, and an intelligent control system 11;

[0023] The leaching solution injection system includes a storage device 1, an injection pump 2, a main leaching solution pipeline 3, branch leaching solution pipelines 4, and injection pipelines 5. The main leaching solution pipeline 3 and branch leaching solution pipelines 4 are located above the outside of the ion-adsorption rare earth ore body. The input end of the injection pump 2 is connected to the storage device 1, and the output end is connected to the main leaching solution pipeline 3. The main leaching solution pipeline 3 is equipped with an injection valve and multiple branch leaching solution pipelines 4. Multiple injection pipelines 5 are equipped on the branch leaching solution pipelines 4, and the end of the injection pipelines 5 extends into the ore body.

[0024] The leaching solution recovery system includes a collection tunnel 6, a collection ditch, and a mother liquor pool. The collection tunnel 6 is located below the ion-adsorption rare earth ore body and is obtained by directly excavating the ion-adsorption rare earth ore body. One end of the collection tunnel 6 is open, and the other end extends into the ore body. A collection ditch is provided at the open end of the collection tunnel 6, and the collection ditch is connected to the mother liquor pool.

[0025] The negative pressure system includes a negative pressure capillary pipe 7, a negative pressure branch pipe 8, a negative pressure main pipe 9, and a negative pressure generating device 10. The negative pressure branch pipe 8 is located in the liquid collection tunnel 6. The negative pressure capillary pipe 7 is connected to the negative pressure branch pipe 8. The negative pressure branch pipe 8 is connected to the negative pressure main pipe 9. The negative pressure main pipe 9 is connected to the negative pressure generating device 10. A negative pressure valve is installed on the negative pressure main pipe 9. The ion-adsorption rare earth ore body has multiple negative pressure surfaces perpendicular to the negative pressure branch pipes. Each negative pressure surface includes multiple negative pressure capillary pipes 7. The negative pressure capillary pipes 7 in each negative pressure surface are connected to the same position of the negative pressure branch pipe 8. The negative pressure capillary pipes 7 in each negative pressure surface are distributed in a fan shape.

[0026] The intelligent control system 11 includes a data acquisition module and an automatic control module; the automatic control module is connected to the injection pump 2, the injection valve, the negative pressure generating device 10, and the negative pressure valve.

[0027] In one embodiment of this utility model, a pressure sensor, a liquid level sensor, and a permeability coefficient sensor are installed inside the ion-adsorption rare earth ore body; a liquid level sensor and a pH sensor are installed inside the liquid storage device 1; and a flow sensor is installed on the liquid injection pipeline 5.

[0028] In one embodiment of this utility model, the data acquisition module is connected to a liquid level sensor, a permeability coefficient sensor, a flow sensor, a pH sensor, and a pressure sensor.

[0029] In one embodiment of the present invention, the intelligent control system 11 further includes a data processing and analysis module, a security module, and a system optimization module.

[0030] In one embodiment of this utility model, the liquid storage device 1 is equipped with a stirring device and a temperature control device.

[0031] During use, the negative pressure generating device 10 and the injection pump 2 are activated. The negative pressure generating device 10 creates a negative pressure environment within the ion-adsorption rare earth ore body, and the injection pump 2 injects the leaching solution into the ion-adsorption rare earth ore body. Under the action of negative pressure, the leaching solution penetrates to all parts of the ore body, leaching out the rare earth ions within the ore body. The leaching solution after leaching enters the collection tunnel 6 and is finally collected into the mother liquor pool through the collection ditch.

[0032] This invention provides an in-situ negative pressure leaching system for ion-adsorption rare earth minerals. By setting multiple negative pressure surfaces perpendicular to the negative pressure branch pipes within the ore body, with negative pressure capillary channels in each negative pressure surface distributed in a fan shape, a negative pressure environment is generated within the ion-adsorption rare earth mineral body. This enhances the penetration and diffusion of the leaching solution within the ore body, resulting in a more uniform distribution of the leaching solution and fully leaching out rare earth ions, thus increasing the concentration of rare earth ions in the leaching solution. Simultaneously, the negative pressure environment accelerates the flow rate of the leaching solution, reducing its residence time within the ore body and improving leaching efficiency. The application of an intelligent control system enables automated monitoring and regulation of the entire leaching process. The data acquisition module collects key parameters during the leaching process in real time, and the automatic control module automatically adjusts the working status of the injection pump, injection valve, negative pressure generator, and negative pressure valve according to preset conditions and algorithms, ensuring the stability and efficiency of the leaching process. This not only improves work efficiency but also reduces the complexity and error rate of manual operation.

[0033] The foregoing description describes some exemplary embodiments of this utility model. It is understood that the above embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model. The features in these embodiments can be recombine in a suitable manner, and the resulting solutions are still within the scope of protection claimed by this utility model. Based on the above embodiments, all other embodiments obtained by those skilled in the art without inventive effort, that is, all modifications, equivalent substitutions, and improvements made within the spirit and principles of this application, fall within the scope of protection claimed by this utility model.

Claims

1. An in-situ negative pressure leaching system for ion-adsorption rare earth minerals, comprising an ion-adsorption rare earth mineral body, characterized in that, It also includes a leaching solution injection system, a leaching solution recovery system, a negative pressure system, and an intelligent control system; The leaching solution injection system includes a storage device, an injection pump, a main leaching solution pipeline, branch leaching solution pipelines, and injection pipelines. The main leaching solution pipeline and the branch leaching solution pipelines are located above and outside the ion-adsorption rare earth ore body. The input end of the injection pump is connected to the storage device, and the output end is connected to the main leaching solution pipeline. The main leaching solution pipeline is equipped with an injection valve and multiple branch leaching solution pipelines. Multiple injection pipelines are provided on the branch leaching solution pipelines, and the ends of the injection pipelines extend into the ore body. The leaching solution recovery system includes a collection tunnel, a collection ditch, and a mother liquor tank; the collection tunnel is located below the ion-adsorption rare earth ore body, with one end open and the other end extending into the ore body; the collection ditch is provided at the open end of the collection tunnel and is connected to the mother liquor tank. The negative pressure system includes negative pressure capillary pipes, negative pressure branch pipes, a negative pressure main pipe, and a negative pressure generating device. The negative pressure branch pipes are located within the liquid collection tunnel. The negative pressure capillary pipes are connected to the negative pressure branch pipes, which are connected to the negative pressure main pipe. The negative pressure main pipe is connected to the negative pressure generating device, and a negative pressure valve is installed on the negative pressure main pipe. The ion-adsorption rare earth ore body contains multiple negative pressure surfaces perpendicular to the negative pressure branch pipes. Each negative pressure surface includes multiple negative pressure capillary pipes. The negative pressure capillary pipes in each negative pressure surface are connected to the same position of the negative pressure branch pipe, and the negative pressure capillary pipes in each negative pressure surface are distributed in a fan shape. The intelligent control system includes a data acquisition module and an automatic control module; the automatic control module is connected to the injection pump, the injection valve, the negative pressure generating device, and the negative pressure valve.

2. The in-situ negative pressure leaching system for ion-adsorption rare earth minerals according to claim 1, characterized in that, The ion-type rare earth ore body is equipped with a pressure sensor, a liquid level sensor, and a permeability coefficient sensor; the liquid storage device is equipped with a liquid level sensor and a pH sensor; and the injection pipeline is equipped with a flow sensor.

3. The in-situ negative pressure leaching system for ion-adsorption rare earth minerals according to claim 2, characterized in that, The data acquisition module is connected to the liquid level sensor, the permeability sensor, the flow sensor, the pH sensor, and the pressure sensor.

4. The in-situ negative pressure leaching system for ion-adsorption rare earth minerals according to claim 1, characterized in that, The intelligent control system also includes a data processing and analysis module, a security module, and a system optimization module.

5. The in-situ negative pressure leaching system for ion-adsorption rare earth minerals according to claim 1, characterized in that, The liquid storage device is equipped with a stirring device and a temperature control device.

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